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Expired Canadian patentCanada

Ion source

CA 1306074 C · Owner: Cryovac Corporation · Inventors: Okamoto, Akio; Fukui, Shigeo; Ogawa, Soichi

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention provides an ion source comprising an ion-generating chamber and an anode formed of multi-capillary for sending high-density atoms or molecules to be ionized into the ion-generating chamber in a constant direction.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted August 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 21, 1988
GrantedAugust 4, 1992
Term endedAugust 4, 2009
Patent numberCA 1306074 C
Classification (IPC)H01J27/16 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedNov 21, 1988Patent grantedAug 4, 1992Term endedAug 4, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.